Skin texture - please help!

Hi everyone,

how do I isolate my material.cs and my line of code in the main .jbeam file which is -->
"hatch_skin_YOURSKIN": {
"information":{
"authors":"BeamNG",
"name":"YOUR SKIN NAME",
"value":200,
}
"slotType" : "paint_design",
"globalSkin" : "YOURSKIN",
}

and, How do I make a DDS file and make my own skin zip, and am I supposed to make the skin texture first?

Thanks!